Blanching when cooking, is scalding vegetables and then putting them in ice water to preserve color. Blanching concerning health is the loss of color in skin due to transient ischemia.
Blanching works by quickly cooking the food and then quickly stopping the cooking progress. This is usually stopped using ice water.
Blanching is most commomly used to prepare vegetables for freezing. It is simply scalding, boiling or steaming a vegetable briefly - a couple of minutes - to stop enzymatic action before freezing, but without actually cooking the vegetable.
Blanching means plunged into boiling water and removed after a brief time of cooking and then shocked with icy or cold water to stop the cooking process. Water boils at 100 degree Celsius or 212 degree Fahrenheit.
Blanching is good if you want to cook somthing fast for example vegies :D. But some of the disadvantgaes are that the thing that you are blanching loses the vitamins and nutrents that naturally occur in them. so bassically they lose some of the "healthy' factor of them but it is up to the person that is cooking the food.
In cooking terms blanching means to quickly cook the outside of vegatables, by placing them in boiling water for about 3-4 minutes.Then put them in an ice bath, drain them, and then you can freeze them.When you take them out of the freezer they are as fresh as the day you bought them.
Blanching vegetables involves immersing them in boiling, usually salted, water for a short period of time, and then draining. Blanching is appropriate for vegetables that require very little cooking or could even be eaten raw: green beans, asparagus, etc. For green vegetables, blanching is usually followed immediately by an ice bath; as rapid cooling is needed to stop cooking and preserve the green colour (which breaks down after about 7 minutes of cooking).
"Hagoshi" is a term in Japanese cuisine that refers to blanching or parboiling ingredients briefly before further cooking or processing. This technique helps to remove impurities, eliminate strong flavors, or partially cook the ingredient.
Blanching pasta means briefly dipping past in water to soften it, you are not cooking it. For example, you would blanch lasagna sheets to soften them before placing them in a pan to be covered with sauce and cheese. Whereas boiling implies that the pasta will be cooked, at least to al dente.
This is when you boil them on high for a few minutes. It is a good way to start the cooking process, and is not uncommon when roasting a lot of vegetables.
The thermal shock in blanching brings about different chemical changes. Chemical changes include the release of robust acids found in vegetables such as cabbage and broccoli. Blanching immediately stops the cooking process and allows the retention of certain nutrients. It boosts color, making the appearance of blanched food look shiny and bright. It deactivates enzymes and kills microorganisms
Any method of cooking with heat will make the kale or any food loose nutrients, but the least loss method would be blanching.